Download Cyber Ed Listening Guide

Cyber Ed Listening Guide- Heredity
Name ______________________________________
Lesson
1a
 Human physical characteristics are known as ________________.
 The study of how traits are inherited from one generation to the next
is called
_______________.
2a
 ________________ are sections of DNA that code for specific traits.
 Genes are found in DNA, which is wound into __________________,
which are found in the _____________of the cell.
2b
3a
4a
5a
6a
 Sperm and egg cells are produced by the process of ____________
and each have ________ chromosomes. When they combine during
fertilization, the new cell (organism) has ____ chromosomes.
 The study of genes is called ______________. The first person to
study genetics was ______________________________.
 Mendel studied _______ of _____________plants.
 ______________ traits cover up (mask) recessive traits.
 ______________traits are masked by the dominant traits.
 In Mendel’s experiment, which flower color was
dominant?______________
 In Mendel’s experiment, which flower color was recessive?
______________
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
Two different versions of the same gene are called _______________.
Dominant alleles are usually written with _______________letters.
Recessive alleles are usually written with ______________letters.
The allele combination of Pp would give what color flowers?
6b
7a
7b
 Offspring receive ____ alleles for every gene from each parent.
 The actual alleles an offspring inherits are referred to as its
________________.
 The specific trait that results from the alleles is referred to as its
______________.
 The letters PP or pp represents the _________________ of the plant
flower color while the traits purple or white flowers represent the
______________________.
 A chart called a _________________ shows possible allele
combinations that offspring can inherit from their parents.
 Individuals with two identical alleles in their genotypes are
_______________________ because the prefix “homo” means
____________________________________.
 Individuals with two different alleles in their genotype are
_______________________ because the prefix “hetero” means
______________.
7c
7d
 Genotype
PP
Pp
pp
Phenotype
_____________
_____________
_____________
8a
 ______________________ occurs when dominant alleles completely
mask recessive alleles.
 _____________________ occurs when two alleles interact and show
a blended phenotype. Neither is dominant or recessive.
 _________________ occurs when two different alleles are dominant
and both appear in the phenotype.
9a
 The 23rd pair of chromosomes is called the ____________
chromosomes. Males have one ________ and one ________
chromosome while females have two ____ chromosomes.
10b
 A _______________ is used to trace patterns of inheritance of
specific traits.
Applications:
Part 1
Part 2
1. _______________
2. _______________
3. _______________
4. _______________
5. _______________
6. _______________
7. _______________
8. _______________
9. _______________
10. _______________
Part 3
Test:
1. ___________
2. ___________
3. ___________
4. ___________
5. ___________
6. ___________
7. ___________
8. ___________
9. ___________
10.___________
11. _______
12. _______
13. _______